CN201156324Y - Educational affiliation for demonstration of gaseous change - Google Patents
Educational affiliation for demonstration of gaseous change Download PDFInfo
- Publication number
- CN201156324Y CN201156324Y CNU2008200102772U CN200820010277U CN201156324Y CN 201156324 Y CN201156324 Y CN 201156324Y CN U2008200102772 U CNU2008200102772 U CN U2008200102772U CN 200820010277 U CN200820010277 U CN 200820010277U CN 201156324 Y CN201156324 Y CN 201156324Y
- Authority
- CN
- China
- Prior art keywords
- glass tube
- teaching
- hole
- container
- sealing plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a teaching appliance which is used to demonstrate the change of gas, and is characterized in that the teaching appliance is provided with an open transparent container. A sealing plug with two through holes is arranged at the opening of the transparent container; wherein, one through hole of the sealing plug is penetrated with a glass tube. The other end of the glass tube is connected with a pressure container. The other through hole of the sealing plug is also penetrated with a glass tube. The lower end of the glass tube is extended into the container and is sheathed with a balloon. The teaching appliance has simple structure and strong maneuverability, can intuitively demonstrate the change of the gas, can save trouble and time, not only is convenient for a teacher to complete teaching tasks quickly, but also improves the studying interest and practical ability of students, and can help a lot to cultivate the abilities to analyze and solve problems of the students.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly relates to a kind of teaching aid that gas changes of demonstrating, and is to having replenishing of physics teaching in secondary school apparatus kind now, belonging to the school supply and stationery category.
Background technology
At present, middle school teaching apparatus kind is a lot, but function singlenesses all just designs at the content that needs separately to show.In junior middle school physics teaching, make the student grasp the knowledge that gas changes by experiment, it is very important content in the physics teaching, yet be again one of the important of physics lesson and the course of beyonding one's depth, student and teacher press for teaching aid targetedly, because existing demonstration gas changes teaching aid, do experiment and come DeGrain, and be difficult for observing, there is certain difficulty in the student to the understanding that gas changes knowledge, thereby bring certain difficulty to teaching, even have influence on student performance and learning interest.
The utility model content
The purpose of this utility model is to overcome the prior art above shortcomings, improves by research, provides a kind of teaching aid that gas changes of demonstrating.This novel teaching aid is simple in structure, workable, but ocular demonstration gas changes, not only save trouble but also save time, both be convenient to the teacher and finished teaching task quickly, improved the interest and the manipulative ability of student's study again, very helpful to the analysis and the problem-solving ability of cultivating the student.
The technical scheme that the utility model provides is: the teaching aid that this demonstration gas changes, be characterized in a uncovered transparent vessel, wherein the transparent vessel open-mouth is provided with the sealing-plug with two through holes, wherein be installed with glass tube in sealing-plug through hole, the other end of this glass tube is connected with pressure vessel, also be installed with glass tube in another through hole of sealing plug, the lower end of this glass tube probes in the container and is with a balloon.
Compared with prior art, the beneficial effects of the utility model are: simple in structure, workable, but ocular demonstration gas changes, not only save trouble but also save time, both be convenient to the teacher and finished teaching task quickly, improved the interest and the manipulative ability of student's study again, very helpful to the analysis and the problem-solving ability of cultivating the student.
Description of drawings
Accompanying drawing is the structural representation that the utility model provides embodiment.
Embodiment
As shown in the figure, the teaching aid that this demonstration gas changes, a uncovered transparent vessel 1 is arranged, wherein transparent vessel 1 open-mouth is provided with the sealing-plug 2 with two through holes, wherein be installed with glass tube 3 in sealing-plug 2 through hole, the other end of this glass tube 3 is connected with pressure vessel, also is installed with glass tube 4 in another through hole of sealing plug 2, and the lower end of this glass tube 4 probes in the container 1 and is with a balloon 5.
During demonstration, extract air in the transparent vessel 1 with pressure vessel by glass tube 3 earlier, can be observed swollen naturally the rising of balloon 5 of transparent vessel 1 inner glass tube 4 lower ends, can obviously find out atmospheric variation.
Claims (1)
1. demonstrate the teaching aid that gas changes for one kind, it is characterized in that having a uncovered transparent vessel, wherein the transparent vessel open-mouth is provided with the sealing-plug with two through holes, wherein be installed with glass tube in sealing-plug through hole, the other end of this glass tube is connected with pressure vessel, also be installed with glass tube in another through hole of sealing plug, the lower end of this glass tube probes in the container and is with a balloon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200102772U CN201156324Y (en) | 2008-01-16 | 2008-01-16 | Educational affiliation for demonstration of gaseous change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200102772U CN201156324Y (en) | 2008-01-16 | 2008-01-16 | Educational affiliation for demonstration of gaseous change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201156324Y true CN201156324Y (en) | 2008-11-26 |
Family
ID=40104102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200102772U Expired - Fee Related CN201156324Y (en) | 2008-01-16 | 2008-01-16 | Educational affiliation for demonstration of gaseous change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201156324Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109377839A (en) * | 2018-12-11 | 2019-02-22 | 阆中市河溪镇小学校 | Teaching presses demonstrating experiment device with multifunction atmospheric |
-
2008
- 2008-01-16 CN CNU2008200102772U patent/CN201156324Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109377839A (en) * | 2018-12-11 | 2019-02-22 | 阆中市河溪镇小学校 | Teaching presses demonstrating experiment device with multifunction atmospheric |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 |